Model: D559B-2M-80

Safety Relief Valve

Special Features:

Max operating pressure and temp, 200 lb psin, 250 degrees f; designed for acetylene, air, ammonia, inert gas, hydrogen, and refrigerant 12

Properties:

Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Connection Style
G46b plain (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Thread Size
0.250 inches 1st end
Opening Pressure Setting
80.0 pounds per square inch
Material
Copper alloy
Thread Series Designator
Npt 1st end
NSN
4820-01-159-6022
Part Number
D559B-2M-80
Description
Valve,safety Relief
CAGE
91816

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

Part D559B-2M-80 NSN 4820-01-159-6022

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05488
FIIG:
A046B0
Concept No.:
1
App. Key:
AP
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
77.5
WCC:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8481400000
  • SITC: 74740
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Safety or relief valves

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